meta-aspeed: Move g6 environment

The Aspeed u-boot tree has the g6 environment at 640KiB.  Move to 512KiB
for easy OpenBMC compatibility.

(From meta-aspeed rev: 5b6780e9810f79b352db7ae8c6a352d978ef2cd3)

Change-Id: I65a8c799eb1db8756516a4f46098c75ee18751d1
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-aspeed/recipes-bsp/u-boot/u-boot-common-aspeed-sdk_2019.04.inc b/meta-aspeed/recipes-bsp/u-boot/u-boot-common-aspeed-sdk_2019.04.inc
index 4e1d945..c25bb6d 100644
--- a/meta-aspeed/recipes-bsp/u-boot/u-boot-common-aspeed-sdk_2019.04.inc
+++ b/meta-aspeed/recipes-bsp/u-boot/u-boot-common-aspeed-sdk_2019.04.inc
@@ -12,6 +12,7 @@
 
 UBRANCH = "aspeed-dev-v2019.04"
 SRC_URI = "git://github.com/AspeedTech-BMC/u-boot;branch=${UBRANCH};protocol=https"
+SRC_URI += "file://0001-arm-evb-ast2600-put-environment-back-at-512KiB.patch"
 
 S = "${WORKDIR}/git"